She added that the suspects had "stopped, got out of their vehicle, attempted and failed to abduct my nephew by putting him in the trunk of their car, stabbed them both and drove off."

Writing on Instagram at the weekend she pledged to help make the capital's streets safer: "We need to make our streets safer and I want to be part of the movement to achieve that. I hope you will join me."

The hatchback with blacked out windows was filmed travelling at high speed through the streets of south London.

The driver of the suspects' vehicle is described as white or mixed race, aged in his early to mid-20s, 6ft tall, of large build and with a shaved head and stubble. He was wearing a navy blue tracksuit.

Image copyrightNeilson Barnard/GettyImage caption
Miles Hurley, pictured with his aunt, Elizabeth Hurley, was attacked by a group of men

Simon Monga, from the Met Police, said: "This was a violent and unnecessary attack. A minor traffic collision has resulted in two men being stabbed.